Axially shifting type hydraulically operable tire remover



Sept. 30, 1952 E. A. ZANG 2,612,214

AXIALLY SHIFTING TYPE HYDRAULICALLY OPERABLE TIRE REMOVER Filed Jan. 9, 1947 I 2 SHEETs -SHEET 1 IN V EN TOR.

' Elbert: [I Z any Sept. 30, 1952 E. A. ZANG 2,612,214

' AXI/ALLY SHIFTING TYPE HYDRAULICALLY .OPERABLE TIRE REMOVER Filed Jan. 9,1947 2 SHEETSSHEET 2 IN V EN TOR.

Patented Sept. 30, 1952 STAT-ES PATEN o AXIALL'YISHIFTING TYPE HYDRAULICALLY OPERABLE TIRE REMOVER Elbern'AfiZang, Wichita, Kane. Application January 9, 1947', Serial No. 720,951

1 Claim. (Cl. 157-12) This invention relates to an apparatus for removing tires and it is primarily an object of the invention to provide an apparatus 'of this kind which'can be employed to particular advantage in the removal of a tire under adverse conditions and particularly when the tire and/or the lock ring are frozen, as by rust, to the rim or when the rubber within the beads of a tire adheres to the rim from heat generated while the" wheel is in service or heat generated from the brakes.

It is also an object of the invention to provide an apparatus of this kind which can be employed in a manner to effect the removal of a tire without liability of material damage to the bead of the tire as would be likely when a tire iron or a conventional heavy hammer is used in the removal operation.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved tire removing apparatus whereby certain advantages are attained, as will be hereinafter more fully set forth.

In order that my invention may be better understood, I will now proceed to describe the same with reference to the accompanying draw- I ings, wherein:

Figure 1 is a view in side elevation, with portions broken away of a tire removing apparatus constructed in accordance with an embodiment of my invention and in operative engagement with a tire;

Figure 2 is a view in top plan of the device or structure as illustrated in Figure 1;

Figure 3 is an enlarged fragmentary, vertical sectional view with parts in elevation, taken through the device and showing the apparatus in position to remove a lock ring; and

Figure 4 is a fragmentary view partly in elevation and partly in section showing the apparatus being used to remove a marginal portion of a tire from the rim of a wheel.

As illustrated in the accompanying drawings, B denotes a leg supported base of desired dimensions and which includes in its upper portion a table 2 preferably cylindrical in plan and, of course, of required radius.

This table 2 at its axial center is provided with a relatively large opening 3 through which is adapted to be inserted from above a relatively heavy shank 4 depending from the axial center of a clamping and supporting base plate P upon which the cylinder 5 of a hydraulic jack H is secured by bolts or other suitable means, as shown. This jack H is of any preferred type and therefore a detailed description and illustration:

thereof is believed to be unnecessary other than" tostate that it includes the outwardly disposed plungert provided therethrough at spaced points therealong with the spaced openings 7 whereby may be adjustably mounted upon the outer portion of the plunger 6 a collar 8.

Threading upon theshank 4 below the tablet;

when the jack H and plate P are mounted thereon, is a holding or binding nut 9.

'At predetermined points spaced around the collar and preferably at equi-distantly spaced points are the pairs of outstanding ears l0 herein disclosed as four in number, although, of course, I do not wish to be understood as limiting myself in this respect.

, Pivotally connected as at H between each pair of ears I 0 is an end portion of an elongated lever I2 and pivotally connected to the inner portion of the lever l2 as at M at a point in relatively close proximity to the inner pivotal connection II is the upper end portion of a rigid link l5 of desired length. The opposite or lower end portion of this link [5 is pivotally connected as at l6 between a pair of upstanding spaced ears I! carried by the clamping plate P and such link moves relatively to the plate in accordance with the direction of movement of the lever l2.

The outer extremity of each of the levers [2 has pivotally connected therewith as at It! the upper extremity of a depending swinging arm l9 which at its lower extremity carries an arcuate cross member 20 extending equi-distantly beyond opposite sides of the arm I 9 and herein disclosed as also extending therebelow.

Rigid with the opposite end portions of the cross member 20 and entirely to one side of the arm I9 is an upstanding flange 2! carried by the outer marginal portion of an inwardly directed presser foot 22 disposed on a downward curvature closely approaching that of the normal curvature of the side or apron portion of a tire T as carried by the rim 23 of the conventional disk type of wheel W.

The feet 22 are of substantially the same length and are disposed also on a curvature conforming to the circumferential curvature of the tire T and said foot is relatively wide so as to have an effective bearing or pressing contact upon the side wall of the tire T. The outer or free longitudinal margin 24 of each of the shoes is of a knife edge to facilitate its having an effective engagement with either the conventional marginal flange 25 of the rim 23' or with the lock ring 26 associated with a tire assembly T.

rim of a wheel body comprising a supporting table for said wheel body and having a central opening, a clamping plate adapted to be positioned upon the wheel body, a stud depending plunger 6 outwardly. This will result in down,-

ward movement being imposed ,onqthew eet .22. with a resultant pressure suflicienttov effect release of the ring 26 without the necessity of usin a tire arm or a conventional heavy hammer and in a manner whereby is substantially eliminated the liability of materially damaging a bead of the tire. In freeing the tire T from the flange 25.

the wheel W is applied to the table 2, as illustrated in Figure 4, in..;a.manner whereby th flangeld is upwardly, disposed. Feet or shoes,..2 2 are then, caused to. ,operatively engage. the. up? er side; portion of the .tire Tin. the same, manner as justhrecitedlinc connection with theremoval .of thelock ringfZB.

From the foregoing descriptionit .isthoughtto be obvious-.thata tire removing apparatus constructedin accordance .with my, invention is particularly well adaptedfor useby. reason of the convenience and facility with which, it may be assembled-andoperated.

,I..c1aim:

An. vfifp aratus for removing -'-a tire from the from the center of the lower side of said plate through the wheel body and said opening, a nut threaded on the stud to secure the wheel body and said plate on the table, a jack unit rising from the center of said plate; and having ;a vertically movable plunger, levers pivotally connected at their inner ends to the plunger and extending radially outwardly therefrom a substantial distancebeyond theltable and clamping plate, link memberspivotally connecting said levers intermediate their ends with the clamping plate, de-

ipen ding arm members pivotally attached to the outer endsof the levers, and a presser foot attached to the lower end of each arm member for :movement downwardly against the side of a tire on the wheel body.

. ELBERN,. A. ,ZANG.

streamers CITED The following references are of: recordrin :the

fileroizthis patent:

' UNITED STATES ZPATENTS Number Name Date 1,170,612 Covey vFeb. 8,1916 1,667,351,, Levitt, Apr. 24:, 1928 1,983,608 ,Hand ,Dec.,11, 1934 2,375,956 ,Smith =et, a1.v May 15,..1945 2,418,849 Polt -Apr. 15,1947 

